Centralizar o nav

Como descascar esse abacaxi?

by VinĂ­cius Pontin

HTML

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<footer id="page_footer">
	<div class="container">
		<div class="row">
			<div class="col-md-8">
				<ul id="page_footer_links" class="nav nav-pills nav-center">
					<li role="presentation"><a href="#">Home</a></li>
					<li role="presentation"><a href="#">Profile</a></li>
					<li role="presentation"><a href="#">Messages</a></li>
				</ul>
			</div>
			<div class="col-md-4">
				<p id="page_footer_wordpress" class="text-center">Orgulhosamente movido com <a href="http://wordpress.org/" title="A Semantic Personal Publishing Platform" rel="generator" target="_blank">WordPress</a>!!!</p>
			</div>
		</div>
	</div>
</footer>

CSS

#page_footer
{
	background-color: #f5f5f5;
	width: 100%;
}
	#page_footer .container
	{
		padding: 20px;	
	}
	

#
{
	margin: 0 auto;
	text-align: center;
}
	
#page_footer_wordpress
{
	margin: 0px;
	height: 40px;
	line-height: 40px;
}